Question: what makes creating a GUI for ffmpeg so difficult that none of sufficiently high quality seems to have gained relevance so far? Also: I understand th

Question: what makes creating a GUI for ffmpeg so difficult that none of sufficiently high quality seems to have gained relevance so far? Also: I understand the privacy concerns, but basically any LLM that's large enough can act as a conversational UI to ffmpeg nowadays. Why would I want to add a specific one to do that?